Patents by Inventor David Hadjis

David Hadjis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System for treating food waste by centrifugal spin drum and bag filter
    Patent number: 5176825
    Abstract: This invention provides means whereby the liquid component can be separated from the solids in food waste and garbage. The invention provides a spinning perforated drum with an internal filter bag through which liquid and fine solids pass by centrifugal force. The separated liquid is filtered through a finer filter to make the water acceptable for municipal sewer disposal.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: January 5, 1993
    Assignee: Dyno Drain Corporation
    Inventors: David Hadjis, Michael Giordano